Dipper for driers in paper-making machines.



J. W. VEDDEB. DIPPER FOB DRIERS IN PAPER MAKING MACHINES. APPLICATION nun) use. 6, 19-11.

1 #084,677. Patented Jan; 20, 1914.

\ UNITED STATES Farmer oiirion 'JoHN WARREN VEDDER, or wmMINeroii. DELA ARE DIPPERFOR DRIERS IN PAPEEMAKING'MACHINE S':

My invention relates toiinprovements in the construction o-fidippers, which are installed in revolving cylinders commonly known as ,driers used upon paper making niac'hines,' in what is known as the drypart ofthe machine. 'Said'dippers are also used in other machines intended for drying fabrics or granular material which pass over them,- the heat being supplied internally to the, cylinder by the admission 'of steamthroughan open ended journal, fitted;

29 with a so called steam-joint or stuffing-box attachment, through which the steam 'is ad mitted and through which the condensa'-- tion of steam in the'form of water-is discharged. The function of the dipper, which -revolves with the drier, being to scoop or dip u I the water as fast as the steam is condense and to.elevate it so that it may be discharged through the hollow trunnion of the revolving drier cylinder. lVithout a- 80 dipper or some such arrangement, thelcondensed steam would necessarily accumulate until the dryingcylinder would become half full before there would be any discharge of water. The improvement embodied in this dipper design fits it for service in driers which are revolved at such. a high rate of speed as to render previous forms of dippers unequal to the-conditions to be met. So'long as the 4 water forms a collection at the bottom and is not carried around by thefriction and.

centrifugal force of the drier, this dipper will operate. The fundamentalideabcing to cause the water topass into the involute shaped funnel by reason of its relative velocity, that is, the funnel is moving up- "wardly while the water is running down-- wardly, and the result of-the impact will result in passing the water into the mouth of the funnel, which immediately there-- after, revolves higher and higher so that the water runs toward thelend of the dipper which is attached, or which terminates practically atthe oenter-ofthe dr enupon ,which the dipperirevolves. The velocity of the water is so relatedto thepdistanceato be" I Specification of Letters Patent. Application filed December-6, 1911.

Dipper for Driers in Patented Jan, 20}, 1 914. -Seria1. No. 664,241.

traveled and the time which is available, to insure, that the water dipped up reaches the inner end of the dipper-and is ,dis-

charged into a receiver beforethe dipper The receiver into which the water isdischarged by the dipper, is so constructed 'as to nsure a non-returiiof the water, and to allow a discharge through the hollow jour- .tinue practically throughout the entire revolution. This provision obviates the possiin the dipper, means for dipping charging, practically, constantlyfii furaction of the dipper breakany vacuum thatinight be formed in the dipper.

drier journal;

The dipper is cast screwed by means of screw periphery of the drier in a vsecure manner to prevent ts displacement.

Figure lv-is a sectional view through one end of a drying a; dipper and receivingchamber shown therein, with the dipper shown witlrits receiving mouth showsa cross-section of tlie sain'e cylindrical drier, looking toward the end in which is fitted the'dipper and its receiver. Fig. 3 is a view similar to: Fig. 1, showing a-tro'ughlike clipper.

In these figures the parts bear similar letters." I The dipper A I mouth with the shape one side of which closely coincides withlhe l innerfsurfaceof the drier shell. This parl by referring to the accompanying-drawing is shown as having a of a parallelogram,

allelograni is reduced in length as the dipper is extended from its outer end toits inner. end, until it becoinessq'riare in ,form The dipper is shaped approximately as an involute curve in a plane diametrically disposed toward the [practically its inner end, where it turns at right angles to passes the zenith and is turned downwardly.-

'bility of a reciprocating motion of-thewater' a nd PIOYldQS. a practicable periodically,- and dispreferably made separate from the receiving chamber and both are end of the drier journal, and to the interior.

looking forward. Fig. 2

drier axis until-it reachesthis plane and is joined. by

nal of the drieigayhicli dischargeinay conther PIOVlSlOhiS made to insure smooth 'byyprovidingl a v'ent to y .75, or receiver,)vh c h would retard the free discharge of the water through'the metal. be ng The invention maybe better understood 5 diame t-rically-. cylinder 'witli in'gchamber central with the .and its journal,

a flange bolted to the side ot-the receivingchamber B.

The dipper pipe A is provided with vent hole B is provided with an air .vent at E. The receiving chamber B is provided with an outlet pipe 1). It will be noted that this outlet pipeD is axis of the drier while the receiving chamber ..B ris disposed eccentrically to this center, and the-iconnection of the'di'pper A at the bend- C is central to the receiving chamber B It is to be further observed discharge; chamber.

-It is evident that ment could be. carried out with modifications, such as, making it of sheet metal, or making it allin' One piece, or by the omission of the top side of the'parallelogram shaped dipper pipe, that is, by making the dipper A- troughlike having sides and'bottom only as shown in- Fig. 3. These slight changes might be beneficial, depending to some extent upon the diameter of'thje drier and the speed of its revolutions. I

Having described and illustratedthe invention fully, I claim r' 1. In a' dipper arrangement for revolving driers, a dipper practically of involute form,

V having its mouth secured practically in con- [tact with.

the inner surfaceof a drying cylinder, and its discharge end-secured eccentri cally with the center of said drying cylinder, and a .receiving hamber secured eccentrically to the drier cylinder with its discharge outlet'concentric with said drier cylinder.

2. In a dipper arrangement-for revolving driers, a dipper practically of involute form, having its mouth secured practically in contact with the inner surface of a drying cylinder,.and its discharge end secured eccentrically withthe center of said drying cylinder, -and areceiving chamber having a vent ole and being secured eccentric to the drier cylinder with its discharge outletconcentric with said drier cylinder.

3. .The combination of a drying cylinder, a dipper therein of involute form having its 'mouth in contact with the inner periphery of the cylinder, a receiving chamber within and located eccentrically to the drying chamber and having a vent and a discharge outlet, the inner end of said dipper discharging to said receiving chamber.

. 4. The combination with a revoluble cylfinder or drum, of a receiving chamber within said cylinder and fixedly joined thereto and having a discharge outlet approximately concentric to the axis of rotation of the cylinder, and acurved dipper within said cylinder and fixedly oined thereto with its F3 The receivcylinder but eccentric to, the, center of the'drier and discharge pipe D3 hat the angular. location of the mouth of the dipper is 205 degrees in advance of the position of the this general arrange and a curved dipper within lfixedly joined-thereto wit-hits receiving end wall of the cylinder and its other end discharging into said receiving receiving end near theperipheral wall of the.

cylinder and its other end discharging into said receiving chamber eccentrically to the axis of rotation of the cylinder.

v 5. The combination with a revoluble cylinder or. drum,

of a receiving chamber within said cylinder. and fixedly in-a; position eccentric to the axis of rotation of thecylinder and having a discharge outlet approximately concentric to said axis,

" said cylinder and near the peripheralchamber eccentrically to the axis of rotation "of the cylinder, the relative" positioning being further such that when the dipper is down the receivin' 'the discharge out then the bottom of said chamber and the dipper communicating with what is then the upper part of said receivingchamber above .thedischarge outlet.

chamber will beup with et leading from what is 6'. The combination with a revoluble cylinder or drum, of a receiving chamber within said cylinderand fixedly joined thereto in a position eccentric to the axis of rotation.

of the cylinder and having a discharge outlet approximately concentric to said axis, and a curved dipper within said cylinder and its other end discharging into said receiving chamber eccentrically to the axis of-rotation of the cylinder, ends of the dipper being also on approximately opposite sides of the discharge outlet of the receiving chamber, the relative positioning being further such that when the dipper is down the receiving chamber 'will be'up with'the discharge out-let leading and having a discharge outlet, and a curved trough-like dipper within said cylinder and fixedly joined thereto with its receiving end near the peripheral wall of the cylinder and fixedly joined thereto with its receiving endnear the peripheral wall of the cylinder and the receiving and dischargejoined thereto its other end discharging into said receiving chamber.

8. The combination with a revoluble cylinder or drum, of

a receiving chamber withi in said cylinder and fixedly joined thereto into said receiving and having a discharge outlet approximately concentric to the axis of rotation of the cylinder, and a curved trough-like dipper within said cylinder and fixedly joined thereto with its receiving end near the peripheral wall of the cylinder and its other end discharging theaxisof rotation of the'cylinder.

chamber eccentrically to ran in a position eccentric to the axis of rotation of the cylinder and having a discharge outlet approximately concentric to said axis, and a curved trough-like dipper within said cylinder and fixedly joinedthereto with its cylinder and its other end dischar said receiving chamber eccentrlca y to the receiving end near the peripheral wall of the axis.of-rot ation of the cylinder.

JOHN WARREN VEDDER. Witnesses:

HERMAN R. HARBIGAN, Y Jnssr: E. Sco'rr. 

